1. Material: 316L Stainless Steel + Drilling Carbon Coating + Liquid silicone strap 2. Screen size: 1.43 inch Ultra HD AMOLED Display, Corning Gorilla Glass, Support Always-on Displays 3. Resolution: 466x 466 pixels, 326 PPI, up to 1000nit brightness 4. Battery capacity: 260m. Ah Li-pol battery 5. Chip: Realtek 8763EW 6. Standby time: About 14 days 7. Use time: About 5-7 days 8. Voice Call Duration: About 365 minutes 9. Charging time: About 1.5 hours 10. Support system version: Android 5.0 or iOS 10.0 and above 11. Sensor: 3-Axis Accelerometer, 3-Axis Gyroscope Sensor, New OHR fusion biometric sensor. 12. Bluetooth: BLE 5.2 13. APP Name: Fit. Cloud. Pro 14. Watch Band: 22mm width, compatible with standard 22 mm quick release watch bands. 130-235mm wrist circumference 15. Dial size: 45 x 45 x 10.7mm 16. Weight: 46.5g with wristband, 27.5g without wristband. Languages:1. System: English, Portuguese, German, Russian, Spanish, Polish, Turkish, Persian, Japanese, Kor, French, Italian, Ukrainian, Vietnamese, Arabic, Simplified Chinese.2. Da Fit APP: English, Portuguese, German, Russian, French, Spanish, Italian, Polish, Japanese, Turkish, Kor, Arabic, Hebrew, Thai, Croatian, Czech, Indonesian, Malay, Greek, Romania, Simplified Chinese. 3. Message Push: English, Portuguese, German, Russian, French, Spanish, Italian, Polish, Japanese, Turkish, Kor, Arabic, Hebrew, Thai, Croatian, Czech, Indonesian, Malay, Greek, Romania, Simplified Chinese. Features: 1. Voice Calling Features: One Touch to Connect, Voice Calling, Voice Assistant, Dial Pad, Recent Call, Contact, Call Rejection. 2. Theme Style: Cellular, List, Tile. 3. Clock Features: Time/Date, Automatic Daylight Saving Time, Stopwatch, Timer, Alarm and Time Setting. 4. Health Monitoring: Wrist-based Heart Rate (Constant, Every Minute), Daily Resting Heart Rate, SpO2(Blood Oxygen) Level Measurement, Blood Pressure, Breathing Training, Women's Health, Sleep Score and Insights, and Calorie Burn Tracking. 5. Daily Smart Features: Smart Notifications(Call, Text, Gmail, and Smartphone App Notifications), Weather Sync, Controls Smartphone Music and Camera, Find My Phone and Watch, Do Not Disturb Modes, Sedentary alert. Drink water reminder, Calendar, Calculator, Business Card, APP Download. 6. Activity Tracking Features: Activity Record, Step Counter, Standing, Move Bar (Displays on device after a period of inactivity of inactivity; Walk for a couple of minutes to reset it), Auto Goal (Learns your activity level and assigns a daily step goal), Calories Burned, Real-time Pace & Distance. 7. Other Functions: Activity Record, Step Counter, Standing, Move Bar (Displays on device after a period of inactivity; Walk for a couple of minutes to reset it), Auto Goal (Learns your activity level and assigns a daily step goal), Calories Burned, Real-time Pace & Distance. 8. Sport Modes: 1) System: Walking, running, climbing, outdoor cycling, basketball, soccer, badminton, yoga, skipping rope. 2) Fit. Cloud. Pro APP Push: Indoor running, strength training, elliptical machine, table tennis, rowing machine, tennis, baseball, rugby, cricket, lazy car, exercise bike, treadmill, free training, aerobics, indoor walking, indoor cycling, dance, sit-ups, hula hoops, golf, long jump, volleyball, stepping, horseback riding, field hockey, tai chi, shuttlecock, boxing, outdoor walking, cross-country running, skiing, gymnastics, ice hockey, taekwondo, maximal oxygen uptake, walker, hiking, track and field, waist and abdominal training, karate, finishing and relaxation, cross-training Pilates, crossfit, functional training, physical training, archery, flexibility, mixed aerobics, Latin dance, street dance, free sparring, ballet, Australian soccer, martial arts, stair climbing, handball, bowling, squash, curling, hunting, snowboarding, recreational sports, American football, hand cycling, fishing, Frisbee, folk dancing, alpine skiing, snow sports, soothing meditation head, core training, ice skating, fitness Games, aerobics, group exercise, combat gymnastics, lacrosse, foam axle shoulder, wrestling, fencing, softball, singles, bars, roller skating, darts, pikeball, HIIT, shooting, jiu-jitsu, skateboarding, balance bike, roller skating, parkour, diving, surfing, snorkeling, pull-ups, push-ups, planks, rock climbing, high jump, bungee jumping, marathon. Watch Faces: 1. APP Sync: 300+ 2. System Default: 4 3. Always-on Displays: Support 4. Customize Watch Faces: Support. Packing List: 1. Smartwatch x 12. Liquid Silicone Strap x 13. Magnetic Charging Cable x 14. Instruction Manual x 1